The two numbers which have only 1 as their common are called:
Co-primes
Twin prime
Composite
None of these
The greatest number that will divide 137, 182 and 422 leaving a remainder of 2 in each case is:
15
12
21
5
2
3
6
A ______________ number has factors other than 1 and itself
composite
prime
odd
even
In 7 * 5 = 35, 7 and 5 are called
products
factors
multiple
none of these
L.C.M of two Co-prime numbers is their:
Sum
Difference
Product
Quotient
What are the factors of 20?
1 ,3 , 4 , 5
2, 6, 5
2, 4, 5, 12, 20
1, 2, 4, 5, 10, 20
The smallest number of 4-digits exactly divisible by 12, 15, 20 and 35 is:
1,000
1,160
1,260
HCF of 120, 144 and 216 is:
38
24
120
144
The least number which when decreased by 7 is exactly divisible by 12, 16, 18, 21 and 28 is:
1,012
1,008
1,015
1,022
