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13,17,19,21,23 ഇവയിൽ കൂട്ടത്തിൽപെടാത്ത സംഖ്യ ഏത്?

A23

B21

C19

D13

Answer:

B. 21

Read Explanation:

21 is not a prime number


Related Questions:

Seven people, G, H, I, J, K, L and M, are sitting in a row, facing north(but not necessarily in the same order) . Only G sits to the left of J. Only four people sit between G and H. Only K sits between L and I, and L is not an immediate neighbour of H. How many people sit between M and J?
Find the Odd one out:
Find the ODD one out from the given options.
ഒറ്റയാനെ കണ്ടെത്തുക.
Among the following list, choose the one that is different from the other ones :