1.

number5) Check whether 6" can end with the digit 0 for any natural ฮ.. 6. Explain why 7 * 11 13+ 13 and7 6 5x4 3 2 *1 +5 are composite numbershere is a cirealar path around a jponts field Soni takes Is minutes to drive one rourne i

Answer»

1st case7*11*13+13 = 13(7*11+1) = 13*78 = 13*2*3*13Since it has more than two prime factors, it is a composite number.

Similarly,

2nd case7*6*5*4*3*2*1+5 = 5(7*6*4*3*2*1+1) = 5*1009Since it has more than two prime factors, it is a composite number.



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