Question

Consider the numbers forest n where n is a natural number check whether there is any value of n for which forest and ends with the digit 0

Answer 1

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ғᴏʀ ᴛʜᴇ ɴᴜᴍʙᴇʀ 4ɴ ᴛᴏ ᴇɴᴅ ᴡɪᴛʜ ᴅɪɢɪᴛ ᴢᴇʀᴏ ғᴏʀ ᴀɴʏ ɴᴀᴛᴜʀᴀʟ ɴᴜᴍʙᴇʀ ɴ, ɪᴛ sʜᴏᴜʟᴅ ʙᴇ ᴅɪᴠɪsɪʙʟᴇ ʙʏ 5. ᴛʜɪs ᴍᴇᴀɴs ᴛʜᴀᴛ ᴛʜᴇ ᴘʀɪᴍᴇ ғᴀᴄᴛᴏʀɪsᴀᴛɪᴏɴ ᴏғ 4ɴ sʜᴏᴜʟᴅ ᴄᴏɴᴛᴀɪɴ ᴛʜᴇ ᴘʀɪᴍᴇ ɴᴜᴍʙᴇʀ 5.

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