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Question Number 95699 by i jagooll last updated on 27/May/20

many digits of number   5^8 ×4^5 ×7

$$\mathrm{many}\:\mathrm{digits}\:\mathrm{of}\:\mathrm{number}\: \\ $$$$\mathrm{5}^{\mathrm{8}} ×\mathrm{4}^{\mathrm{5}} ×\mathrm{7}\: \\ $$

Commented by Rasheed.Sindhi last updated on 27/May/20

5^8 ×4^5 ×7=5^8 ×(2^2 )^5 ×7  5^8 ×2^8 ×2^2 ×7  7×4×(5×2)^8   28×10^8   10 digits

$$\mathrm{5}^{\mathrm{8}} ×\mathrm{4}^{\mathrm{5}} ×\mathrm{7}=\mathrm{5}^{\mathrm{8}} ×\left(\mathrm{2}^{\mathrm{2}} \right)^{\mathrm{5}} ×\mathrm{7} \\ $$$$\mathrm{5}^{\mathrm{8}} ×\mathrm{2}^{\mathrm{8}} ×\mathrm{2}^{\mathrm{2}} ×\mathrm{7} \\ $$$$\mathrm{7}×\mathrm{4}×\left(\mathrm{5}×\mathrm{2}\right)^{\mathrm{8}} \\ $$$$\mathrm{28}×\mathrm{10}^{\mathrm{8}} \\ $$$$\mathrm{10}\:{digits} \\ $$

Commented by PRITHWISH SEN 2 last updated on 27/May/20

wow!

$$\mathrm{wow}! \\ $$

Commented by i jagooll last updated on 27/May/20

cooll

$$\mathrm{cooll} \\ $$

Commented by Rasheed.Sindhi last updated on 27/May/20

Th∀nk you both sirs!

$$\mathcal{T}{h}\forall{nk}\:{you}\:{both}\:{sirs}! \\ $$

Answered by i jagooll last updated on 27/May/20

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