The greatest five digit number which is exactly divisible by each one of the number 12 18 21 a...........

Quant (SSC) LCM, HCF

The greatest five digit number which is exactly divisible by each one of the number 12, 18, 21 and 28 is

98286

92888

99284

99792

LCM of 12, 18, 21 and 28 = 252

When we divde greatest five digit no. 99,999 by 252,
we get 207 remainder

Now, subtracting 207 by 99,999, we get

= 99999 – 207 = 99,792.

99,792 is largest five digit number divisible by 12, 18, 21 and 28.

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