Directions:(1-5) Find the next term in the series.

1. 1, 7, 56, 504, 5040, ?

 

Ans: 3
The pattern is as follows:
1 x 7 = 7
7 x 8 = 56
56 x 9 = 504
504 x 10 = 5040
5040 x 11 = 55440

 

2. 181, 404, 755, 1276, 2015, ?

Ans: 4
The pattern is as follows:
181 + 63 + 7 = 404
404 + 73 + 8 = 755
755 + 83 + 9 = 1276
1276 + 93 + 10 = 2015
2015 + 103 + 11 = 3026

 

3. 20, 22, 26, 34, 41, ?

Ans: 3
The next number is obtained by adding sum of digits of the number to the number itself
20 + sum of its digits (2 + 0) = 22
22 + sum of its digits (2 + 2) = 26
26 + sum of its digits (2 + 6) = 34
34 + sum of its digits (3 + 4) = 41
41 + sum of its digits (4 + 1) = 46

 

4. 24, 30, 48, 78, 120, ?

Ans: 3
The pattern is as follows:
24 + 6 x 1 = 30
30 + 6 x 3 = 48
48 + 6 x 5 = 78
78 + 6 x 7 = 120
120 + 6 x 9 = 174

 

5. 71, 96, 145, 226, 347, ?

Ans: 3
The pattern is as follows:
71 + 52 = 96
96 + 72 = 145
145 + 92 = 226
226 + 112 = 347
347 + 132 = 516

 

Directions:(6-10) Find the next term in the series.

6. 182, 193, 206, 214, 221, ?

Ans: 2
The next number is obtained by adding the sum of the digits:
182 + 11 = 193
193 + 13 = 206
206 + 8 = 214
214 + 7 = 221
221 + 5 = 226

 

7. 27, 27, 54, 81, 135, 216, ?

Ans: 1
The pattern is as follows:
27 + 27 = 54
27 + 54 = 81
54 + 81 = 135
81 + 135 = 216
135 + 216 = 351

 

8. 28, 42, 70, 98, 154, ?

Ans: 1
The pattern 14 being multipled by consecutive prime numbers:14 x 2 = 28
14 x 3 = 42
14 x 5 = 70
14 x 7 = 98
14 x 11 = 154
14 x 13 = 182

 

9. 3630, 3341, 3085, 2860, 2664, ?

Ans: 4
The pattern is as follows:
3630 – 172 = 3341
3341 – 162 = 3085
3085 – 152 = 2860
2860 – 142 = 2664
2664 – 132 = 2495

 

10. 5, 7, 13, 25, 45, ?

Ans: 5
The pattern is as follows:
5 + (1 x 2) = 7
7 + (2 x 3) = 13
13 + (3 x 4) = 25
25 + (4 x 5) = 45
45 + (5 x 6) = 75

 

Pages: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

133 thoughts on “Number Series”

  5. Marcos

    You actually make it seem really easy with your presentation but I find this topic to be actually
    one thing which I believe I’d never understand. It seems
    too complicated and very vast for me. I’m looking ahead
    for your subsequent submit, I’ll attempt to get the cling of it!
    Lista escape roomów

  9. Apolonia Ege

    Hello I am so grateful I found your website, I really found you by mistake, while I was browsing on Bing for something else, Anyhow I am here now and would just like to say thanks for a remarkable post and a all round interesting blog (I also love the theme/design), I don’t have time to read it all at the minute but I have saved it and also included your RSS feeds, so when I have time I will be back to read more, Please do keep up the excellent work.

  60. Ngzadszk

    Explore the ranked best online casinos of 2025. Compare bonuses, game selections, and trustworthiness of top platforms for secure and rewarding gameplaycasino bonus.

  61. fliet

    Happy to join conversations, share experiences, and learn something new as I go.
    I like understanding different opinions and contributing whenever I can. Happy to hear different experiences and connecting with others.
    That’s my site-https://automisto24.com.ua/

  121. RichardGrart

    ¡Saludos, seguidores de la diversión !
    Mejores casinos online extranjeros 2025 en espaГ±ol – п»їhttps://casinosextranjerosenespana.es/ casinos extranjeros
    ¡Que vivas increíbles victorias épicas !

  126. Oscardon

    ¡Saludos, estrategas del desafío !
    Mejores promociones en casinos fuera de EspaГ±a – п»їhttps://casinosonlinefueraespanol.xyz/ casino online fuera de espaГ±a
    ¡Que disfrutes de triunfos épicos !

  129. Douglasvok

    ¡Hola, descubridores de oportunidades únicas!
    Casinos fuera de EspaГ±a para mГіvil y escritorio – п»їhttps://casinosonlinefueradeespanol.xyz/ casino por fuera
    ¡Que disfrutes de asombrosas rondas vibrantes !

  132. Franktug

    ¡Hola, exploradores de oportunidades !
    Casino sin licencia espaГ±ola que acepta Ethereum – п»їhttps://casinosinlicenciaespana.xyz/ casino sin licencia espaГ±a
    ¡Que vivas increíbles instantes únicos !

Leave a Comment

Your email address will not be published. Required fields are marked *

Scroll to Top