if m,n are natural numbers for what values of m, does 2n×5m each in 5​

if m,n are natural numbers for what values of m, does 2n×5m each in 5​

1 thought on “if m,n are natural numbers for what values of m, does 2n×5m each in 5​”

  1. Step-by-step explanation:

    2n x 5m

    2n is always even for all values of n.

    5m is always odd and ends with 5 for all values of m. But 2n x 5m is always even and ends in 0.

    ∴ 2n x 5m cannot end with the digit 5 for any values of m. No value of m will satisfy 2n x 5m ends in 5.

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