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Number Quiz

Number Quiz

Fun Mental math exercises

1. Which of the following numbers is divisible by 9?
a) 118

b) 125
c) 126
d) 327

2. Which of the following is the greatest common factor of 15, 30 and 45?
a) 3
b) 5
c) 10
d) 15

3. Which are the first 3 prime numbers after 50?
a) 51, 53, 57
b) 53, 57, 61
c) 51, 53, 59
d) 53, 59, 61

4. Which of the following numbers is divisible by 6?
a) 213
b) 317
c) 426
d) 712

5. Find the prime factors of 91
a) 3, 17
b) 13, 7
c) 3, 9, 5
d) 7, 3, 21

Answers:
1. c
2. d
3. d
4. c
5. b