Are these numbers co-prime? 14,25
yes
An even prime number.
2
common factors of 25 and 15
1,5
factors of 20
1,2,4,5,10,20
All prime numbers till 30
2,3,5,7,11,13,17,23,29
Factors of 18
1,2,3,6,9,18
Prime factors of 36
2,3
Are multiples of 4 always even?
yes
first 5 multiples of 6
6,12,18,24,30
Is this a twin prime pair? 41,43
yes
numbers which are multiples of 70: 230, 140, 280, 330, 490, 610
140,280,490
A Prime number between 44 and 50?
47
I am a multiple of 70. I am between 300 and 500. I am 20 more than a multiple of 100. Who am I?
420
HCF OF 12, 16
4