Number of the form 4m + 1 is always
A prime number
An even number
An odd number
Rational number
Every positive odd integer is in the form
3 q
3 q + 1
2 q
2 q + 1
Find the least number which is exactly divisible by 12, 15, 20 and 54.
194, 400
101
540
542
The prime factors of 176 are
2 × 2 × 2 × 2 × 11
2 × 2 × 2 × 3 × 11
2 × 2 × 3 × 3 × 11
2 × 2 × 2 × 11 × 11
What is the H. C. F of 204 and 1190 ?
51
34
2312
714
Find a + b from given factor tree.
42
7
49
53
For any positive integer n, n3- n is always divisible by
6
5
4
The largest number which divides 70 and 125 leaving remainder 5 and 8 respectively is
11
13
17
20
Euclid's division lemma can be used only for calculating
L.C.M
H.C.F
Prime number
Even prime number
Find the greatest number less than 900 which is divisible by 8, 12, 28 :
852
152
840
828