Everything except 1,2,3,5,7,11,13,17,19,23,29,31,37,41 and 43
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For first division overall 60% or more than 60% marks are required and second division 45-59%(More than 45 and less than 60% marks), for third Division its less than 45% marks.
Greatest common factor of two numbers x and y(x>y) is always less than or equal to y.So, we will write down only those factors of 800 which are less than or equal to 45.Factors of 45: 1, 3, 5, 9, 15 and 45.Factors of 800: 1, 2, 4, 5, 8, 10, 16, 20, 25, 40...So, Greatest common factor is 5.Alternate Method:Method of prime factorization:45 = 3x3x5800 = 2x2x2x2x2x5x5It is clear that 5 is the only number which divides both 45 and 800.So, gcf of 45 and 800 is 5.
The numbers are: 27 30 33 36 39 42 and 45
The LCM of 45 and 24 is 360.
The least common multiple of the numbers 30, 70 and 45 is 630.